Tim Cook Tweets Story of User's Apple Watch Detecting Atrial Fibrillation - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Tim Cook Tweets Story of User's Apple Watch Detecting Atrial Fibrillation

Apple CEO Tim Cook today shared a story on Twitter of an Apple Watch that alerted its user to atrial fibrillation, potentially saving their life in the process.

ecgapplewatchinaction
Elissa Lombardo tweeted Cook with her husband's experience with Apple Watch that occurred just two days after he started wearing the device.

The smartwatch's ECG feature detected the case of A-Fib during an elevated heart rate, which led her husband to seek medical attention.

Medical professionals apparently discovered a "major blockage" in his arteries but were able to correct the problem, and two days later he was feeling fine again.

According to Lombardo, her husband presented with similar symptoms in the past, but on those occasions he never visited the emergency room to get them checked out.


This isn't the first time an Apple Watch has potentially saved someone's life. When the ECG feature launched in December in the U.S., TIME published a story about a 46-year-old Texas resident who was having trouble breathing normally.

Fortunately, since he was wearing an Apple Watch and participating in the recent Apple Heart Study, he was alerted to signs of an irregular heartbeat and went to the emergency room.

At the hospital, doctors hooked him up to an ECG machine and found signs of atrial fibrillation, an irregular heartbeat that can lead to stroke and other potentially fatal complications. He spent the next few days in the hospital while doctors returned him to a normal sinus heart rhythm.

Related Roundup: Apple Watch 11
Tags: ECG, Tim Cook

Popular Stories

3 4 24 Sport Band Refresh Feature

Sketchy Rumor Claims Apple Watch Series 12 Could Introduce Sensor in Band

Friday July 3, 2026 8:54 am PDT by
The Apple Watch Series 12 could ship with a new health sensor built directly into one of its bands, according to a sketchy rumor from a known leaker. The leaker known as "Kosutami" says the sensor will be injection-molded into a silicone band, and only a silicone band, apparently because Apple has not yet solved how to embed similar hardware in bands made from other materials. No detail was...
watchos 27

Siri AI Comes to Apple Watch in watchOS 27 Beta 3

Monday July 6, 2026 1:24 pm PDT by
With watchOS 27 beta 3, Apple added support for Siri AI and the Siri app, so Apple Watch users can now use the features right from their wrist. Apple said Siri AI would be coming to the watch back when watchOS 27 was first introduced, but the feature wasn't live until now. The Dynamic App Grid that pops up when the Digital Crown is pressed displays the Siri app in the center, and the...
Apple Watch Series 10 Jet Black

Apple Watch Series 13 Rumored to Mark the End of an Era

Wednesday July 8, 2026 1:29 pm PDT by
While the Apple Watch Series 12 is still a few months away, a new rumor suggests that next year's Apple Watch Series 13 will mark the end of an era. According to a recent post from a known leaker on the Chinese social media platform Weibo, the Apple Watch will be receiving a major redesign next year, and this will apparently include a new way of attaching bands to the watch. As a result, the ...

Top Rated Comments

98 months ago
Meanwhile in the UK people are writing Tim on how they are dead and how the feature could have saved their lives.
Score: 9 Votes (Like | Disagree)
arkitect Avatar
98 months ago
Apparently you guys have healthy hearts with the mediterranean diets so will probably last in the queue ;):D
Alas, that used to be true…

;)

Leading ten fast food chains in Italy as of December 2018 ('https://www.statista.com/statistics/561541/top-fast-food-chains-on-facebook-in-italy/')

apple watch detects user a fib story image

Edit: Seems they even have ambulances on standby outside.
Score: 9 Votes (Like | Disagree)
Dave245 Avatar
98 months ago
In my opinion the Apple Watch is one of Apples best products to date, alongside the AirPods of course :)

Now if only Apple would release a new iMac!
Score: 3 Votes (Like | Disagree)
djcerla Avatar
98 months ago
I’m in Italy and want my life saved, too! Come on Tim.
Score: 3 Votes (Like | Disagree)
spazzcat Avatar
98 months ago
Meanwhile in the UK people are writing Tim on how they are dead and how the feature could have saved their lives.
Those people should write their government to speed up the process of approving the feature...
Score: 2 Votes (Like | Disagree)
bbednarz Avatar
98 months ago
Meanwhile in the UK people are writing Tim on how they are dead and how the feature could have saved their lives.
They should probably be taking it up with the proper medical regulatory boards then. Don't you think Apple would like to have this feature activated around the world?
Score: 2 Votes (Like | Disagree)

🔗 Related Apple News & Rumors

Stay updated with the latest Apple ecosystem news and verified rumors